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While computer vision has proven valuable for medical image segmentation, its application faces challenges such as limited dataset sizes and the complexity of effectively leveraging unlabeled images. To address these challenges, we present…

Image and Video Processing · Electrical Eng. & Systems 2024-07-15 Zhaoshan Liua , Qiujie Lv , Chau Hung Lee , Lei Shen

Video object segmentation is a fundamental research problem in computer vision. Recent techniques have often applied attention mechanism to object representation learning from video sequences. However, due to temporal changes in the video…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Quang-Trung Truong , Duc Thanh Nguyen , Binh-Son Hua , Sai-Kit Yeung

360 video object segmentation (360VOS) aims to predict temporally-consistent masks in 360 videos, offering full-scene coverage, benefiting applications, such as VR/AR and embodied AI. Learning 360VOS model is nontrivial due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Dingwen Xiao , Weiming Zhang , Shiqi Wen , Lin Wang

While multimodal large language models (MLLMs) have shown remarkable success across a wide range of tasks, long-form video understanding remains a significant challenge. In this study, we focus on video understanding by MLLMs. This task is…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Daichi Yashima , Shuhei Kurita , Yusuke Oda , Komei Sugiura

The task of semi-supervised video object segmentation (VOS) has been greatly advanced and state-of-the-art performance has been made by dense matching-based methods. The recent methods leverage space-time memory (STM) networks and learn to…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Jiadai Sun , Yuxin Mao , Yuchao Dai , Yiran Zhong , Jianyuan Wang

Humans routinely rely on memory to perform tasks, yet most robot policies lack this capability; our goal is to endow robot policies with the same ability. Naively conditioning on long observation histories is computationally expensive and…

Robotics · Computer Science 2025-10-24 Ajay Sridhar , Jennifer Pan , Satvik Sharma , Chelsea Finn

Balancing temporal resolution and spatial detail under limited compute budget remains a key challenge for video-based multi-modal large language models (MLLMs). Existing methods typically compress video representations using predefined…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Min Shi , Shihao Wang , Chieh-Yun Chen , Jitesh Jain , Kai Wang , Junjun Xiong , Guilin Liu , Zhiding Yu , Humphrey Shi

Semi-supervised video object segmentation (VOS) aims to segment a few moving objects in a video sequence, where these objects are specified by annotation of first frame. The optical flow has been considered in many existing semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Ziyang Liu , Jingmeng Liu , Weihai Chen , Xingming Wu , Zhengguo Li

Visual storytelling requires generating multi-shot videos with cinematic quality and long-range consistency. Inspired by human memory, we propose StoryMem, a paradigm that reformulates long-form video storytelling as iterative shot…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Kaiwen Zhang , Liming Jiang , Angtian Wang , Jacob Zhiyuan Fang , Tiancheng Zhi , Qing Yan , Hao Kang , Xin Lu , Xingang Pan

Transitioning Multimodal Large Language Models (MLLMs) from offline to online streaming video understanding is essential for continuous perception. However, existing methods lack flexible adaptivity, leading to irreversible detail loss and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Kangcong Li , Peng Ye , Lin Zhang , Chao Wang , Huafeng Qin , Tao Chen

Long-form video understanding remains challenging for Vision-Language Models (VLMs) due to the inherent tension between computational constraints and the need to capture information distributed across thousands of frames. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Junbo Zou , Ziheng Huang , Shengjie Zhang , Liwen Zhang , Weining Shen

In this work we propose a capsule-based approach for semi-supervised video object segmentation. Current video object segmentation methods are frame-based and often require optical flow to capture temporal consistency across frames which can…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Kevin Duarte , Yogesh S Rawat , Mubarak Shah

Video tasks are compute-heavy and thus pose a challenge when deploying in real-time applications, particularly for tasks that require state-of-the-art Vision Transformers (ViTs). Several research efforts have tried to address this challenge…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Sreetama Sarkar , Gourav Datta , Souvik Kundu , Kai Zheng , Chirayata Bhattacharyya , Peter A. Beerel

Current state-of-the-art Video Object Segmentation (VOS) methods rely on dense per-object mask annotations both during training and testing. This requires time-consuming and costly video annotation mechanisms. We propose a novel Point-VOS…

Computer Vision and Pattern Recognition · Computer Science 2024-06-11 Idil Esen Zulfikar , Sabarinath Mahadevan , Paul Voigtlaender , Bastian Leibe

Semantic image and video segmentation stand among the most important tasks in computer vision nowadays, since they provide a complete and meaningful representation of the environment by means of a dense classification of the pixels in a…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Felipe Manfio Barbosa , Fernando Santos Osório

Personal robots and driverless cars need to be able to operate in novel environments and thus quickly and efficiently learn to recognise new object classes. We address this problem by considering the task of video object segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Harkirat Singh Behl , Mohammad Najafi , Anurag Arnab , Philip H. S. Torr

Scaling multimodal large language models (MLLMs) to long videos is constrained by limited context windows. While retrieval-augmented generation (RAG) is a promising remedy by organizing query-relevant visual evidence into a compact context,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Honghao Fu , Miao Xu , Yiwei Wang , Dailing Zhang , Jun Liu , Yujun Cai

Referring video object segmentation aims to segment the object referred by a given language expression. Existing works typically require compressed video bitstream to be decoded to RGB frames before being segmented, which increases…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Weidong Chen , Dexiang Hong , Yuankai Qi , Zhenjun Han , Shuhui Wang , Laiyun Qing , Qingming Huang , Guorong Li

Video object segmentation can be understood as a sequence-to-sequence task that can benefit from the curriculum learning strategies for better and faster training of deep neural networks. This work explores different schedule sampling and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Maria Gonzalez-i-Calabuig , Carles Ventura , Xavier Giró-i-Nieto

Long video understanding is inherently challenging for vision-language models (VLMs) because of the extensive number of frames. With each video frame typically expanding into tens or hundreds of tokens, the limited context length of large…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Zheyu Zhang , Ziqi Pang , Shixing Chen , Xiang Hao , Vimal Bhat , Yu-Xiong Wang